Global Patent Index - EP 0544162 B1

EP 0544162 B1 19960103 - Process for the preparation of dialkyle carbonates

Title (en)

Process for the preparation of dialkyle carbonates

Title (de)

Verfahren zur Herstellung von Dialkylcarbonaten

Title (fr)

Procédé de préparation de carbonates de dialkyle

Publication

EP 0544162 B1 19960103 (DE)

Application

EP 92119437 A 19921113

Priority

DE 4138755 A 19911126

Abstract (en)

[origin: US5233072A] To prepare C1-C4-dialkyl carbonates, C1-C4-alkanols are reacted with CO and O2 at a relatively high temperature in a salt melt containing Cu salts.

IPC 1-7

C07C 68/00; C07C 69/96

IPC 8 full level

C07B 61/00 (2006.01); C07C 68/00 (2006.01); C07C 69/96 (2006.01)

CPC (source: EP US)

C07C 68/01 (2020.01 - EP US)

C-Set (source: EP US)

C07C 68/01 + C07C 69/96

Citation (examination)

CHEMICAL ABSTRACTS, vol. 91, no. 9 Columbus, Ohio, US; abstract no. 74204v, ITATANI HIROSHI 'CARBONIC ACID ESTERS' Seite 559 ;Spalte L ; & JP-A-54 024 827

Designated contracting state (EPC)

BE DE ES FR GB IT NL

DOCDB simple family (publication)

EP 0544162 A1 19930602; EP 0544162 B1 19960103; DE 4138755 A1 19930527; DE 59204921 D1 19960215; ES 2081029 T3 19960216; JP H05271155 A 19931019; US 5233072 A 19930803

DOCDB simple family (application)

EP 92119437 A 19921113; DE 4138755 A 19911126; DE 59204921 T 19921113; ES 92119437 T 19921113; JP 33498092 A 19921124; US 97662792 A 19921116